The LQ-2L8L-1200 is a double-layer 8-line cold-cut automatic T-shirt bag making machine built for high-volume production of thin-gauge HDPE vest carrier bags and flat bags. Eight independent production lines run simultaneously from a single film feed, delivering a combined maximum output of 800 bags per minute — approximately 384,000 bags per 8-hour shift at standard operating efficiency.
Cold cutting separates the sealing and cutting operations: bags are heat-sealed first, then cut downstream by a precision temperature-controlled blade. On thin HDPE film (10–30 µm), this produces cleaner edges without film shrinkback and supports higher sustained speeds compared to hot-cut configurations.
Each line is servo-driven with PLC and LCD display control. Photoelectric eye tracking handles pre-printed film registration with auto-stop on mark loss. The integrated automatic punching unit produces T-shirt handle cutouts in-line — no secondary operation required. A swing-type discharge system with bag-bottom shaping delivers neatly stacked finished bags ready for counting and bundling.
At 7,500 × 1,750 mm floor footprint and 3,000 kg, the LQ-2L8L-1200 delivers industrial-scale bag output within a single machine envelope suited to dedicated bag manufacturing facilities.
Core engineering decisions that determine output consistency, precision and long-term running cost.
Eight independent bag-making lines run from a single film feed, delivering up to 800 bags per minute combined — industrial-scale output within a 7,500 × 1,750 mm machine footprint.
Sealing and cutting are performed as separate operations. The downstream cold-cut blade produces clean, shrink-free edges on 10–30 µm HDPE film at sustained high speeds where hot-cut configurations would cause film distortion.
Pre-folded two-layer film is processed through each line simultaneously, producing two finished bags per cutting cycle and maintaining stable handling of ultra-thin HDPE film that would be difficult to control as a single layer at speed.
Each line is servo-driven with CNC length setting and PLC/LCD interface, enabling precise bag length repeatability and fast recipe-based changeover between bag sizes without manual adjustment.
Optical registration sensors track print marks on pre-printed film across all lines, adjusting feed length in real time. Auto-stop with alarm triggers immediately on mark loss to prevent wasted printed material.
T-shirt handle cutouts are punched in-line during production on all 8 lines simultaneously. No secondary punching station or additional floor space required.
Finished bags are bottom-shaped and discharged via swing mechanism into neat, aligned stacks across all lines, minimising downstream stacking labour at high output rates.
The 10–30 µm operating range is specifically suited to standard and ultra-thin HDPE supermarket bags — the highest-volume segment of the global T-shirt bag market.
Confirmed output types for this machine configuration. Actual results depend on film specification and tooling selection.
Not sure if this machine covers your specific product? Send us your sample or drawing
All specifications are under standard operating conditions and may vary depending on film material, bag size and configuration.
| Model Number | LQ-2L8L-1200 |
|---|---|
| Total Power | 12–20 kW |
| Machine Weight | 3,000 kg |
| Cut Type | Cold Cut |
| Lines / Channels | 8 |
| Max Bag Width | 195 mm |
| Speed | 30–100 pcs/min × 8 |
| Film Thickness | 0.010–0.030 mm（10–30 µm） |
| Materials | HDPE, LDPE, LLDPE |
Specifications subject to change without notice. Contact LayerQuestar for the latest confirmed datasheet for this model.
Common questions about the LQ-2L8L-1200. For configuration-specific questions, contact our engineering team directly.
The machine runs 8 lines simultaneously at 30–100 pcs/min per line, for a combined maximum of 800 bags per minute. At 80% operational efficiency over an 8-hour shift, this produces approximately 384,000 finished bags per shift.
Double-layer refers to the film feed configuration: pre-folded film enters each line as two stacked layers, producing two finished bags per cutting cycle. This doubles effective output per line and improves handling stability for ultra-thin HDPE film at high speeds.
Cold cutting separates sealing and cutting into two sequential operations — bags are heat-sealed first, then cut by a downstream blade. This produces cleaner edges on thin HDPE film (10–30 µm) and supports higher sustained speeds. Hot cutting seals and cuts simultaneously and is better suited to thicker LDPE films where a fused edge is acceptable.
Each of the 8 lines produces bags from 120 mm to 195 mm in width and up to 650 mm in length, covering standard convenience-store, supermarket checkout, and food-service T-shirt bag sizes.
The LQ-2L8L-1200 processes HDPE, LDPE, and LLDPE film from 0.010 mm to 0.030 mm (10–30 microns). This range covers ultra-thin economy grocery bags through standard medium-duty retail vest bags. It is optimised for thin-gauge HDPE, the dominant material for high-volume supermarket T-shirt bags.
Yes. With the punching unit disengaged, the machine produces flat bottom-seal bags across all 8 lines. Switching between T-shirt bag and flat bag mode does not require changes to the sealing or cutting system.
The machine footprint is 7,500 mm long × 1,750 mm wide × 2,000 mm high. Allow an additional 2–3 metres of clearance at the film feed end and the bag discharge end for roll loading, operator access, and bag collection.
The LQ-2L8L-1200 uses a servo motor drive system with PLC control and LCD touchscreen display. Bag length is set via CNC programming. Photoelectric eye sensors handle print registration on pre-printed film, with automatic shutdown and alarm on registration errors.
Send us your bag size, output target and film spec — LayerQuestar will respond within 4 business hours.